You can try several fixes. I would suggest that you backup your interface.bsa file and then delete it from the original folder, then use steam to verify game cache integrity (remember to back up any ini tweaks as well).
You can try removing mods one by one to see if that helps.
You can tell us if you actually have any ini tweaks (vsync disabled, mouse acceleration etc)
You can delete your ini files and let the game recreate the ini's again for you (will get taken care of when you verify the cache as well).